local MTH_CREDITS_READY = MTH_OptionsRequire and MTH_OptionsRequire("options-credits", {
	"MTH_GetFrame",
	"MTH_ClearContainer",
})

local MTH_CREDITS_FONT_DELTA = 2

local function MTH_CR_L(key, default)
	if MTH and MTH.GetLocalization then
		return MTH:GetLocalization(key, default)
	end
	return default or key
end

local function MTH_CreditsBumpFont(fs)
	if not fs or not fs.GetFont or not fs.SetFont then return end
	local path, size, flags = fs:GetFont()
	if path and size then
		fs:SetFont(path, size + MTH_CREDITS_FONT_DELTA, flags)
	end
end

local function MTH_CreditsInsertLink(url)
	local link = tostring(url or "")
	if link == "" then return end
	if type(MTH_InsertLinkToChat) == "function" and MTH_InsertLinkToChat(link) then
		if MTH and MTH.Print then
			MTH:Print(MTH_CR_L("CREDITS_LINK_INSERTED", "Link inserted in chat: ") .. link)
		end
		return
	end
	if MTH and MTH.Print then
		MTH:Print(MTH_CR_L("CREDITS_LINK_FALLBACK", "Link: ") .. link)
	end
end

local function MTH_CreditsClearFrame(frame)
	if not frame then return end
	local children = { frame:GetChildren() }
	for i = 1, table.getn(children) do
		if children[i] and children[i].Hide then
			children[i]:Hide()
		end
	end
	local regions = { frame:GetRegions() }
	for i = 1, table.getn(regions) do
		if regions[i] and regions[i].Hide then
			regions[i]:Hide()
		end
	end
end

local function MTH_CreditsCreateLink(parent, label, url, anchorTo, y)
	local button = CreateFrame("Button", nil, parent)
	if not button then return nil end
	button:SetPoint("TOPLEFT", anchorTo, "BOTTOMLEFT", 0, y or -4)
	button:SetHeight(18)
	button:SetWidth(500)
	local text = button:CreateFontString(nil, "ARTWORK", "GameFontHighlightSmall")
	text:SetPoint("LEFT", button, "LEFT", 0, 0)
	text:SetJustifyH("LEFT")
	text:SetText(label)
	text:SetTextColor(0.40, 0.75, 1.00)
	MTH_CreditsBumpFont(text)
	button:SetScript("OnClick", function()
		MTH_CreditsInsertLink(url)
	end)
	button:SetScript("OnEnter", function()
		text:SetTextColor(0.60, 0.90, 1.00)
	end)
	button:SetScript("OnLeave", function()
		text:SetTextColor(0.40, 0.75, 1.00)
	end)
	return button
end

local function MTH_CreditsCreateText(parent, anchorTo, text, font, y, r, g, b)
	local fs = parent:CreateFontString(nil, "ARTWORK", font or "GameFontNormalSmall")
	if anchorTo == parent then
		fs:SetPoint("TOPLEFT", parent, "TOPLEFT", 0, y or 0)
	else
		fs:SetPoint("TOPLEFT", anchorTo, "BOTTOMLEFT", 0, y or -8)
	end
	fs:SetWidth(500)
	fs:SetJustifyH("LEFT")
	fs:SetJustifyV("TOP")
	fs:SetTextColor(r or 0.93, g or 0.93, b or 0.93)
	fs:SetText(text)
	MTH_CreditsBumpFont(fs)
	return fs
end

function MTH_SetupCreditsOptions()
	if not MTH_CREDITS_READY then return end

	local container = MTH_GetFrame("MetaHuntOptionsCredits")
	if not container then return end

	MTH_ClearContainer(container)

	local title = container:CreateFontString("MetaHuntOptionsCreditsTitle", "ARTWORK", "GameFontNormal")
	title:SetPoint("TOPLEFT", container, "TOPLEFT", 10, -10)
	title:SetText(MTH_CR_L("CREDITS_TITLE", "Credits"))
	title:SetTextColor(1.00, 0.82, 0.00)

	local scrollFrame = MTH_GetFrame("MetaHuntOptionsCreditsScroll")
	if not scrollFrame then
		scrollFrame = CreateFrame("ScrollFrame", "MetaHuntOptionsCreditsScroll", container, "UIPanelScrollFrameTemplate")
	end
	scrollFrame:SetPoint("TOPLEFT", title, "BOTTOMLEFT", 0, -10)
	scrollFrame:SetPoint("BOTTOMRIGHT", container, "BOTTOMRIGHT", -30, 10)
	scrollFrame:Show()

	local content = MTH_GetFrame("MetaHuntOptionsCreditsContent")
	if not content then
		content = CreateFrame("Frame", "MetaHuntOptionsCreditsContent", scrollFrame)
	end
	content:SetWidth(520)
	content:SetHeight(2600)
	MTH_CreditsClearFrame(content)
	scrollFrame:SetScrollChild(content)

	local cursor = MTH_CreditsCreateText(content, content, MTH_CR_L("CREDITS_ABOUT_CODE_TITLE", "About the code"), "GameFontNormal", -2, 1.00, 0.82, 0.00)
	cursor = MTH_CreditsCreateText(content, cursor,
		MTH_CR_L("CREDITS_ABOUT_CODE_INTRO",
		"This addon is, in others, a compilation of old vanilla addons that I loved and played with during years. But most of them had become very buggy with TwoW as new contain was added to the server. \n I fixed, reworked, enhanced, and melted them within a modern modular framework that I created.\n"
		.. "I want to make it crystal clear about what work is mine, and what is not and respectfully credit the original authors for the great stuff I've taken from them:"),
		"GameFontNormalSmall", -10)

	cursor = MTH_CreditsCreateText(content, cursor,
		MTH_CR_L("CREDITS_ABOUT_ZHUNTER",
		"- zBars, Antidaze and Autostrip were core functionalities of Vanilla zHunterMod addon. And I kept the \"z\" naming of bars/buttons to always remember it. On top of this I have created myself zBars, zAmmo, zCompanions, zMount, zToys, zCraft.\nAlso the SmartAmmo feature idea is coming from Zhuntermod: there was a file in it with that functionality, but was like a work-in-progress, totally unfunctional and even \"dangerous\" in its current state, and was not active in the addon. Since it was a fucking great idea, I recoded it mostly from scratch and made it work reliably and safely."),
		"GameFontNormalSmall", -10)

	cursor = MTH_CreditsCreateText(content, cursor,
		MTH_CR_L("CREDITS_ABOUT_FEEDOMATIC", "- Feed-o-Matic was entirely the work of Fizzwidget. I made it work for Twow, by melting it as a module calling Metahunt core to get pet's state and up-to-date data for new pet families and their diet."),
		"GameFontNormalSmall", -10)
	cursor = MTH_CreditsCreateLink(content,
		"https://www.wowinterface.com/downloads/info4160-FizzwidgetFeed-O-Matic.html",
		"https://www.wowinterface.com/downloads/info4160-FizzwidgetFeed-O-Matic.html",
		cursor,
		-4)

	cursor = MTH_CreditsCreateText(content, cursor,
		MTH_CR_L("CREDITS_ABOUT_TOOLTIPS", "- Tooltips module is based on Hunter Helper, another vanilla addon of Fizzwidget. I kept the general idea, but there's not much original code left from it in Metahunt as I refactored everything so it plugs on MetaHunt controlled event handlers, can work with Twow data, and is now usable on other things than Beasts."),
		"GameFontNormalSmall", -10)
	cursor = MTH_CreditsCreateLink(content,
		"https://legacy-wow.com/vanilla-addons/fizzwidget-hunter-helper/",
		"https://legacy-wow.com/vanilla-addons/fizzwidget-hunter-helper/",
		cursor,
		-4)

	cursor = MTH_CreditsCreateText(content, cursor,
		MTH_CR_L("CREDITS_ABOUT_CHRONOMETER", "- Chronometer was an old and very popular vanilla addon working with ACE2 libraries. It has known uncountable iterations by various people over the years, and I can't credit them all of them here. The current version used by Metahunt is based on this Twow conversion made by \"wigan91\". I have reworked it to have it Hunter-focused-only: removed the non-hunter/race stuff, improved the definition for spells/effects config that were not correct, added missing hunter spells (not many), and implemented my own bar color scheme fitting better the hunter spells."),
		"GameFontNormalSmall", -10)
	cursor = MTH_CreditsCreateLink(content,
		"https://github.com/wigan91/Chronometer-TWoW",
		"https://github.com/wigan91/Chronometer-TWoW",
		cursor,
		-4)


	cursor = MTH_CreditsCreateText(content, cursor,
		MTH_CR_L("CREDITS_ABOUT_ICU", "- ICU was an old vanilla addon. I used the following last revision and added many more features of config options to it."),
		"GameFontNormalSmall", -10)
	cursor = MTH_CreditsCreateLink(content,
		"https://github.com/wigan91/ICU-TWoW",
		"https://github.com/wigan91/ICU-TWoW",
		cursor,
		-4)

	cursor = MTH_CreditsCreateText(content, cursor,
		MTH_CR_L("CREDITS_ABOUT_MAP", "- The Map/Marker system is the one of pfQuest from Master Shagu. I mostly let it untouched, I just made slight modifications so it can integrate better within Metahunt, and doesn't conflict with pfQuest."),
		"GameFontNormalSmall", -10)

	cursor = MTH_CreditsCreateText(content, cursor,
		MTH_CR_L("CREDITS_ABOUT_ATLAS_LINKS", "- The system allowing to fetch itemlinks in game (In the Weapon tab of the Hunter Book notably) is the one of Atlas Twow."),
		"GameFontNormalSmall", -10)

	cursor = MTH_CreditsCreateText(content, cursor, MTH_CR_L("CREDITS_ABOUT_DATA_TITLE", "About data sources"), "GameFontNormal", -14, 1.00, 0.82, 0.00)
	cursor = MTH_CreditsCreateText(content, cursor,
		MTH_CR_L("CREDITS_ABOUT_DATA_INTRO", "Metahunt ships with its own Twow datastores, limited to hunter stuff only, and most of this data is up-to-date (twow 1.18.1). The beast information is coming directly from a extract of live twow DB, made for MetaHunt by twow dev lead in March 2026.\n\n"
		.. "Other sources used to build the data include:"),
		"GameFontNormalSmall", -10)

	cursor = MTH_CreditsCreateText(content, cursor,
		MTH_CR_L("CREDITS_DATA_OTHER", "- Atlas twow for ranged weapon sources\n\n"
		.. "- Twow wiki for pet diet (which was incomplete, missing Serpents and Foxes)"),
		"GameFontNormalSmall", -10)

	cursor = MTH_CreditsCreateText(content, cursor,
		MTH_CR_L("CREDITS_CLOSING", "With that being said, go back hunting fellas! Preferably on Octowow."),
		"GameFontNormalSmall", -10, 1.00, 0.82, 0.00)

	cursor = MTH_CreditsCreateText(content, cursor,
		MTH_CR_L("CREDITS_SIGNATURE", "\n"
		.. "Metasploit <Atlantis>, of Nordaanar, now N'Zoth"),
		"GameFontNormalSmall", -10)
end